ALEC · Alector Inc. Common Stock
View on chartInsiders & Stakes
| Terrance McGuire Director | ▼ Sell | Open Market | 10,853,817 Shares held | 9/11/2023 | View profile |
| Gerngross Tillman U. Director | ▲ Buy | Grant | 2,644,319 Shares held | 6/14/2023 | View profile |
| Arnon Rosenthal Chief Executive Officer | ▼ Sell | Open Market | 2,294,600 Shares held | 9/3/2026 | View profile |
| King Robert Chief Development Officer | ▲ Buy | Grant | 550,871 Shares held | 10/1/2022 | View profile |
| Sara Kenkare-Mitra President and Head of R&D | ▼ Sell | Open Market | 501,652 Shares held | 12/3/2025 | View profile |
| Neil Lindsay Berkley Principal Financial Officer | ▼ Sell | Open Market | 350,649 Shares held | 9/3/2026 | View profile |
| Romano Gary Chief Medical Officer | ▼ Sell | Open Market | 332,977 Shares held | 3/3/2025 | View profile |
| Marc Grasso Chief Financial Officer | ▼ Sell | Open Market | 296,072 Shares held | 6/2/2025 | View profile |
| Richard H. Scheller Director | ▲ Buy | Grant | 134,899 Shares held | 6/17/2026 | View profile |
| Louis J. Lavigne Jr. Director | ▲ Buy | Grant | 128,109 Shares held | 6/17/2026 | View profile |
| Kristine Yaffe Director | ▲ Buy | Grant | 124,109 Shares held | 6/17/2026 | View profile |
| Elizabeth A. Garofalo Director | ▲ Buy | Grant | 118,650 Shares held | 6/17/2026 | View profile |
| David M. Wehner Director | ▲ Buy | Grant | 115,330 Shares held | 6/12/2024 | View profile |
| Grace Wong-Sarad Principal Accounting Officer | ▼ Sell | Open Market | 106,015 Shares held | 9/4/2026 | View profile |
| Paula Hammond Director | ▲ Buy | Grant | 103,609 Shares held | 6/17/2026 | View profile |
| Shehnaaz Suliman President and COO | ▼ Sell | Open Market | 102,598 Shares held | 12/13/2021 | View profile |
| Mark Altmeyer | ▲ Buy | Grant | 98,650 Shares held | 6/17/2026 | View profile |
| Errol B. Desouza Director | ▲ Buy | Grant | 98,650 Shares held | 6/17/2026 | View profile |
| Polaris Venture Management Co. VI, L.L.C. 10% Owner | ▼ Sell | Other | 0 Shares held | 5/29/2024 | View profile |
Transaction History
| Grace Wong-Sarad | ▼ Sell | Open Market | 3,625 | $9K | 9/4/2026 |
| Grace Wong-Sarad | ▼ Sell | Open Market | 5,165 | $14K | 9/3/2026 |
| Neil Lindsay Berkley | ▼ Sell | Open Market | 29,251 | $78K | 9/3/2026 |
| Arnon Rosenthal | ▼ Sell | Open Market | 72,606 | $193K | 9/3/2026 |
| Grace Wong-Sarad | ▼ Sell | Open Market | 656 | $2K | 9/2/2026 |
| Arnon Rosenthal | ▼ Sell | Gift | 1,050,000 | $0 | 8/19/2026 |
| Arnon Rosenthal | ▼ Sell | Gift | 350,000 | $0 | 8/19/2026 |
| Arnon Rosenthal | ▼ Sell | Gift | 350,000 | $0 | 8/19/2026 |
| Arnon Rosenthal | ▼ Sell | Gift | 350,000 | $0 | 8/19/2026 |
| Grace Wong-Sarad | ▲ Buy | Grant | 20,000 | $0 | 7/9/2026 |
| Paula Hammond | ▲ Buy | Grant | 28,700 | $0 | 6/17/2026 |
| Elizabeth A. Garofalo | ▲ Buy | Grant | 28,700 | $0 | 6/17/2026 |
| Mark Altmeyer | ▲ Buy | Grant | 28,700 | $0 | 6/17/2026 |
| Errol B. Desouza | ▲ Buy | Grant | 28,700 | $0 | 6/17/2026 |
| Louis J. Lavigne Jr. | ▲ Buy | Grant | 28,700 | $0 | 6/17/2026 |
| Kristine Yaffe | ▲ Buy | Grant | 28,700 | $0 | 6/17/2026 |
| Richard H. Scheller | ▲ Buy | Grant | 28,700 | $0 | 6/17/2026 |
| Grace Wong-Sarad | ▼ Sell | Open Market | 3,475 | $7K | 6/3/2026 |
| Arnon Rosenthal | ▼ Sell | Open Market | 87,216 | $172K | 6/2/2026 |
| Grace Wong-Sarad | ▼ Sell | Open Market | 5,709 | $11K | 6/2/2026 |
| Neil Lindsay Berkley | ▼ Sell | Open Market | 19,360 | $38K | 6/2/2026 |
| Richard H. Scheller | ▲ Buy | Grant | 10,833 | $0 | 6/1/2026 |
| Grace Wong-Sarad | ▼ Sell | Open Market | 1,820 | $5K | 4/16/2026 |
| Neil Lindsay Berkley | ▲ Buy | Grant | 54,600 | $0 | 3/15/2026 |
| Arnon Rosenthal | ▲ Buy | Grant | 116,246 | $0 | 3/13/2026 |
| Grace Wong-Sarad | ▼ Sell | Open Market | 1,000 | $3K | 3/10/2026 |
| Grace Wong-Sarad | ▼ Sell | Open Market | 3,367 | $7K | 3/3/2026 |
| Grace Wong-Sarad | ▼ Sell | Open Market | 8,071 | $17K | 3/2/2026 |
| Arnon Rosenthal | ▼ Sell | Open Market | 81,864 | $174K | 3/2/2026 |
| Neil Lindsay Berkley | ▼ Sell | Open Market | 29,649 | $63K | 3/2/2026 |
| Grace Wong-Sarad | ▼ Sell | Open Market | 4,079 | $10K | 2/26/2026 |
| Grace Wong-Sarad | ▼ Sell | Open Market | 4,753 | $6K | 12/5/2025 |
| Grace Wong-Sarad | ▼ Sell | Open Market | 8,056 | $9K | 12/3/2025 |
| Arnon Rosenthal | ▼ Sell | Open Market | 104,347 | $117K | 12/3/2025 |
| Sara Kenkare-Mitra | ▼ Sell | Open Market | 41,687 | $47K | 12/3/2025 |
| Neil Lindsay Berkley | ▼ Sell | Open Market | 37,261 | $42K | 12/3/2025 |
| Grace Wong-Sarad | ▲ Buy | Grant | 32,343 | $0 | 11/10/2025 |
| Neil Lindsay Berkley | ▲ Buy | Grant | 65,000 | $0 | 11/10/2025 |
| Arnon Rosenthal | ▲ Buy | Grant | 174,167 | $0 | 11/10/2025 |
| Grace Wong-Sarad | ▼ Sell | Open Market | 5,910 | $15K | 9/2/2025 |
| Neil Lindsay Berkley | ▼ Sell | Open Market | 15,842 | $40K | 9/2/2025 |
| Sara Kenkare-Mitra | ▼ Sell | Open Market | 23,638 | $59K | 9/2/2025 |
| Arnon Rosenthal | ▼ Sell | Open Market | 51,562 | $129K | 9/2/2025 |
| Paula Hammond | ▼ Sell | Open Market | 14,000 | $33K | 8/26/2025 |
| Sara Kenkare-Mitra | ▲ Buy | Grant | 54,725 | $0 | 7/1/2025 |
| Arnon Rosenthal | ▲ Buy | Grant | 137,125 | $0 | 7/1/2025 |
| Kristine Yaffe | ▼ Sell | Open Market | 1,000 | $1K | 6/20/2025 |
| Paula Hammond | ▲ Buy | Grant | 28,700 | $0 | 6/11/2025 |
| Kristine Yaffe | ▲ Buy | Grant | 28,700 | $0 | 6/11/2025 |
| Mark Altmeyer | ▲ Buy | Grant | 28,700 | $0 | 6/11/2025 |
| Elizabeth A. Garofalo | ▲ Buy | Grant | 28,700 | $0 | 6/11/2025 |
| Richard H. Scheller | ▲ Buy | Grant | 28,700 | $0 | 6/11/2025 |
| Louis J. Lavigne Jr. | ▲ Buy | Grant | 28,700 | $0 | 6/11/2025 |
| Errol B. Desouza | ▲ Buy | Grant | 28,700 | $0 | 6/11/2025 |
| Sara Kenkare-Mitra | ▼ Sell | Open Market | 23,890 | $32K | 6/2/2025 |
| Arnon Rosenthal | ▼ Sell | Open Market | 52,087 | $70K | 6/2/2025 |
| Marc Grasso | ▼ Sell | Open Market | 16,488 | $22K | 6/2/2025 |
| Richard H. Scheller | ▲ Buy | Grant | 15,833 | $0 | 5/2/2025 |
| Sara Kenkare-Mitra | ▼ Sell | Open Market | 29,073 | $43K | 3/3/2025 |
| Arnon Rosenthal | ▼ Sell | Open Market | 40,330 | $59K | 3/3/2025 |
| Marc Grasso | ▼ Sell | Open Market | 18,091 | $27K | 3/3/2025 |
| Romano Gary | ▼ Sell | Open Market | 16,306 | $24K | 3/3/2025 |
| Marc Grasso | ▼ Sell | Open Market | 16,489 | $42K | 12/2/2024 |
| Arnon Rosenthal | ▼ Sell | Open Market | 52,172 | $131K | 12/2/2024 |
| Sara Kenkare-Mitra | ▼ Sell | Open Market | 26,500 | $67K | 12/2/2024 |
| Romano Gary | ▼ Sell | Open Market | 14,892 | $38K | 12/2/2024 |
| Marc Grasso | ▲ Buy | Grant | 216,400 | $0 | 10/1/2024 |
| Sara Kenkare-Mitra | ▲ Buy | Grant | 300,000 | $0 | 10/1/2024 |
| Arnon Rosenthal | ▲ Buy | Grant | 610,500 | $0 | 10/1/2024 |
| Romano Gary | ▲ Buy | Grant | 184,380 | $0 | 10/1/2024 |
| Marc Grasso | ▼ Sell | Open Market | 7,297 | $36K | 9/3/2024 |
| Arnon Rosenthal | ▼ Sell | Open Market | 26,499 | $129K | 9/3/2024 |
| Sara Kenkare-Mitra | ▼ Sell | Open Market | 13,926 | $68K | 9/3/2024 |
| Romano Gary | ▼ Sell | Open Market | 8,478 | $41K | 9/3/2024 |
| Richard H. Scheller | ▼ Sell | Open Market | 44,250 | $228K | 8/22/2024 |
| Paula Hammond | ▼ Sell | Open Market | 10,500 | $53K | 8/12/2024 |
| Kristine Yaffe | ▼ Sell | Open Market | 5,000 | $25K | 8/12/2024 |
| Richard H. Scheller | ▲ Buy | Grant | 15,833 | $0 | 8/2/2024 |
| Louis J. Lavigne Jr. | ▲ Buy | Grant | 35,000 | $0 | 6/12/2024 |
| Kristine Yaffe | ▲ Buy | Grant | 35,000 | $0 | 6/12/2024 |
| Elizabeth A. Garofalo | ▲ Buy | Grant | 35,000 | $0 | 6/12/2024 |
| Richard H. Scheller | ▲ Buy | Grant | 35,000 | $0 | 6/12/2024 |
| David M. Wehner | ▲ Buy | Grant | 35,000 | $0 | 6/12/2024 |
| Paula Hammond | ▲ Buy | Grant | 35,000 | $0 | 6/12/2024 |
| Romano Gary | ▼ Sell | Open Market | 8,040 | $39K | 6/3/2024 |
| Marc Grasso | ▼ Sell | Open Market | 6,920 | $33K | 6/3/2024 |
| Sara Kenkare-Mitra | ▼ Sell | Open Market | 13,206 | $63K | 6/3/2024 |
| Arnon Rosenthal | ▼ Sell | Open Market | 25,135 | $121K | 6/3/2024 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 98,533 | $0 | 5/29/2024 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 98,533 | $0 | 5/29/2024 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 500,000 | $0 | 5/29/2024 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 500,000 | $0 | 4/30/2024 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 98,533 | $0 | 4/30/2024 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 98,533 | $0 | 4/30/2024 |
| Mark Altmeyer | ▲ Buy | Grant | 41,250 | $0 | 3/19/2024 |
| Errol B. Desouza | ▲ Buy | Grant | 41,250 | $0 | 3/19/2024 |
| Marc Grasso | ▼ Sell | Open Market | 5,716 | $40K | 3/4/2024 |
| Arnon Rosenthal | ▼ Sell | Open Market | 18,837 | $130K | 3/4/2024 |
| Romano Gary | ▼ Sell | Open Market | 6,001 | $42K | 3/4/2024 |
| Sara Kenkare-Mitra | ▼ Sell | Open Market | 10,169 | $70K | 3/4/2024 |
| Elizabeth A. Garofalo | ▼ Sell | Gift | 9,459 | $0 | 12/5/2023 |
| Arnon Rosenthal | ▼ Sell | Open Market | 23,831 | $133K | 12/4/2023 |
| Sara Kenkare-Mitra | ▼ Sell | Open Market | 12,519 | $70K | 12/4/2023 |
| Marc Grasso | ▼ Sell | Open Market | 4,574 | $25K | 12/4/2023 |
| Romano Gary | ▼ Sell | Open Market | 5,035 | $28K | 12/4/2023 |
| Romano Gary | ▲ Buy | Grant | 108,000 | $0 | 10/1/2023 |
| Sara Kenkare-Mitra | ▲ Buy | Grant | 163,600 | $0 | 10/1/2023 |
| Arnon Rosenthal | ▲ Buy | Grant | 397,600 | $0 | 10/1/2023 |
| Marc Grasso | ▲ Buy | Grant | 123,000 | $0 | 10/1/2023 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Open Market | 500,000 | $3.0M | 9/11/2023 |
| Terrance McGuire | ▼ Sell | Open Market | 500,000 | $3.0M | 9/11/2023 |
| Arnon Rosenthal | ▼ Sell | Open Market | 5,647 | $29K | 9/5/2023 |
| Sara Kenkare-Mitra | ▼ Sell | Open Market | 6,214 | $32K | 9/5/2023 |
| Romano Gary | ▼ Sell | Open Market | 2,771 | $14K | 9/5/2023 |
| Marc Grasso | ▼ Sell | Open Market | 1,114 | $6K | 9/5/2023 |
| Terrance McGuire | ▼ Sell | Other | 500,000 | $0 | 8/22/2023 |
| Terrance McGuire | ▼ Sell | Other | 6,429 | $0 | 8/22/2023 |
| Terrance McGuire | ▼ Sell | Other | 98,533 | $0 | 8/22/2023 |
| Terrance McGuire | ▼ Sell | Other | 98,533 | $0 | 8/22/2023 |
| Terrance McGuire | ▼ Sell | Other | 13,133 | $0 | 8/22/2023 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 500,000 | $0 | 8/22/2023 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 98,533 | $0 | 8/22/2023 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 98,533 | $0 | 8/22/2023 |
| Richard H. Scheller | ▲ Buy | Grant | 8,541 | $0 | 7/15/2023 |
| Gerngross Tillman U. | ▲ Buy | Grant | 26,250 | $0 | 6/14/2023 |
| Terrance McGuire | ▲ Buy | Grant | 26,250 | $0 | 6/14/2023 |
| David M. Wehner | ▲ Buy | Grant | 26,250 | $0 | 6/14/2023 |
| Kristine Yaffe | ▲ Buy | Grant | 26,250 | $0 | 6/14/2023 |
| Louis J. Lavigne Jr. | ▲ Buy | Grant | 26,250 | $0 | 6/14/2023 |
| Richard H. Scheller | ▲ Buy | Grant | 26,250 | $0 | 6/14/2023 |
| Paula Hammond | ▲ Buy | Grant | 26,250 | $0 | 6/14/2023 |
| Elizabeth A. Garofalo | ▲ Buy | Grant | 26,250 | $0 | 6/14/2023 |
| Sara Kenkare-Mitra | ▼ Sell | Open Market | 4,092 | $28K | 6/2/2023 |
| Marc Grasso | ▼ Sell | Open Market | 1,050 | $7K | 6/2/2023 |
| Romano Gary | ▼ Sell | Open Market | 2,617 | $18K | 6/2/2023 |
| Arnon Rosenthal | ▼ Sell | Open Market | 5,255 | $36K | 6/2/2023 |
| Arnon Rosenthal | ▼ Sell | Open Market | 15,186 | $94K | 3/17/2023 |
| Arnon Rosenthal | ▲ Buy | Grant | 42,990 | $0 | 3/3/2023 |
| Romano Gary | ▼ Sell | Open Market | 3,238 | $27K | 3/2/2023 |
| Sara Kenkare-Mitra | ▼ Sell | Open Market | 10,124 | $84K | 3/2/2023 |
| Marc Grasso | ▼ Sell | Open Market | 1,291 | $11K | 3/2/2023 |
| Arnon Rosenthal | ▼ Sell | Open Market | 5,849 | $49K | 3/2/2023 |
| Romano Gary | ▼ Sell | Open Market | 2,145 | $19K | 12/2/2022 |
| Terrance McGuire | ▼ Sell | Other | 13,133 | $0 | 11/16/2022 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 98,533 | $0 | 11/16/2022 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 98,533 | $0 | 11/16/2022 |
| Terrance McGuire | ▼ Sell | Other | 500,000 | $0 | 11/16/2022 |
| Terrance McGuire | ▼ Sell | Other | 6,429 | $0 | 11/16/2022 |
| Terrance McGuire | ▼ Sell | Other | 98,533 | $0 | 11/16/2022 |
| Terrance McGuire | ▼ Sell | Other | 98,533 | $0 | 11/16/2022 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 500,000 | $0 | 11/16/2022 |
| King Robert | ▲ Buy | Grant | 21,576 | $0 | 10/1/2022 |
| Marc Grasso | ▲ Buy | Grant | 35,702 | $0 | 10/1/2022 |
| Romano Gary | ▲ Buy | Grant | 20,047 | $0 | 10/1/2022 |
| Sara Kenkare-Mitra | ▲ Buy | Grant | 80,365 | $0 | 10/1/2022 |
| Arnon Rosenthal | ▲ Buy | Grant | 179,169 | $0 | 10/1/2022 |
| Romano Gary | ▼ Sell | Open Market | 2,177 | $23K | 9/2/2022 |
| King Robert | ▼ Sell | Open Market | 176 | $2K | 9/2/2022 |
| Terrance McGuire | ▲ Buy | Grant | 9,459 | $0 | 6/16/2022 |
| Louis J. Lavigne Jr. | ▲ Buy | Grant | 9,459 | $0 | 6/16/2022 |
| Paula Hammond | ▲ Buy | Grant | 9,459 | $0 | 6/16/2022 |
| Gerngross Tillman U. | ▲ Buy | Grant | 9,459 | $0 | 6/16/2022 |
| Elizabeth A. Garofalo | ▲ Buy | Grant | 9,459 | $0 | 6/16/2022 |
| Richard H. Scheller | ▲ Buy | Grant | 9,459 | $0 | 6/16/2022 |
| Kristine Yaffe | ▲ Buy | Grant | 9,459 | $0 | 6/16/2022 |
| David M. Wehner | ▲ Buy | Grant | 9,459 | $0 | 6/16/2022 |
| King Robert | ▼ Sell | Open Market | 177 | $2K | 6/2/2022 |
| Romano Gary | ▲ Buy | Grant | 92,250 | $0 | 5/27/2022 |
| King Robert | ▼ Sell | Open Market | 287 | $4K | 3/1/2022 |
| Sara Kenkare-Mitra | ▲ Buy | Grant | 59,000 | $0 | 1/3/2022 |
| Sara Kenkare-Mitra | ▲ Buy | Grant | 59,000 | $0 | 1/3/2022 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 500,000 | $0 | 12/21/2021 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 98,533 | $0 | 12/21/2021 |
| Polaris Venture Management Co. VI, L.L.C. | ▼ Sell | Other | 98,533 | $0 | 12/21/2021 |
| Terrance McGuire | ▼ Sell | Other | 500,000 | $0 | 12/21/2021 |
| Terrance McGuire | ▼ Sell | Other | 6,429 | $0 | 12/21/2021 |
| Terrance McGuire | ▼ Sell | Other | 98,533 | $0 | 12/21/2021 |
| Terrance McGuire | ▼ Sell | Other | 98,533 | $0 | 12/21/2021 |
| Terrance McGuire | ▼ Sell | Other | 13,133 | $0 | 12/21/2021 |
| Shehnaaz Suliman | ▼ Sell | Open Market | 64,102 | $1.4M | 12/13/2021 |
| Shehnaaz Suliman | ▼ Sell | Open Market | 10,898 | $237K | 12/13/2021 |
| Shehnaaz Suliman | ▲ Buy | Option Exercise | 75,000 | $1.3M | 12/13/2021 |
| Shehnaaz Suliman | ▲ Buy | Option Exercise | 75,000 | $1.3M | 12/10/2021 |
| Shehnaaz Suliman | ▼ Sell | Open Market | 66,126 | $1.4M | 12/10/2021 |
| Shehnaaz Suliman | ▼ Sell | Open Market | 8,874 | $198K | 12/10/2021 |
| Shehnaaz Suliman | ▲ Buy | Option Exercise | 75,000 | $1.3M | 12/9/2021 |
| Shehnaaz Suliman | ▼ Sell | Open Market | 72,357 | $1.6M | 12/9/2021 |
| Shehnaaz Suliman | ▼ Sell | Open Market | 2,643 | $62K | 12/9/2021 |
| Shehnaaz Suliman | ▲ Buy | Option Exercise | 19,813 | $341K | 12/8/2021 |
| Shehnaaz Suliman | ▲ Buy | Option Exercise | 55,187 | $565K | 12/8/2021 |
| Shehnaaz Suliman | ▼ Sell | Open Market | 36,511 | $824K | 12/8/2021 |
| Shehnaaz Suliman | ▼ Sell | Open Market | 38,489 | $886K | 12/8/2021 |
| King Robert | ▼ Sell | Open Market | 250 | $5K | 12/1/2021 |
| Arnon Rosenthal | ▼ Sell | Open Market | 55,000 | $1.4M | 11/11/2021 |
| Arnon Rosenthal | ▼ Sell | Open Market | 55,000 | $1.4M | 11/10/2021 |
| Arnon Rosenthal | ▼ Sell | Open Market | 55,000 | $1.4M | 11/9/2021 |
| Arnon Rosenthal | ▼ Sell | Open Market | 15,000 | $375K | 11/9/2021 |
| Arnon Rosenthal | ▼ Sell | Open Market | 15,000 | $375K | 11/9/2021 |
| Arnon Rosenthal | ▼ Sell | Open Market | 15,000 | $375K | 11/9/2021 |
| Arnon Rosenthal | ▼ Sell | Open Market | 55,000 | $1.4M | 11/8/2021 |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
September 27, 2026
Alector (ALEC) sees purchases by NVIDIA and Merck
Recent filings show that NVIDIA and Merck have added positions in Alector. The involvement of these large technology and pharmaceutical firms may draw attention to the biotech company. The stock is currently trading near its 10‑touch support level of $1.47. Market participants may watch how this institutional interest aligns with the company's valuation.
Alector (ALEC) sees purchases by NVIDIA and Merck. Recent filings show that NVIDIA and Merck have added positions in Alector. The involvement of these large technology and pharmaceutical firms may draw attention to the biotech company. The stock is currently trading near its 10‑touch support level of $1.47. Market participants may watch how this institutional interest aligns with the company's valuation.